Improvement in hammers



HAMMOND.

Hammer.

No. 204,665. Patented June H. 1878.

h ifnfwes. 1720(72/711.

UNITED STATES PATENT QFFICE.

HENRY HAMMOND, OF HARTFORD, CONNECTICUT, ASSIGNOR TO HORACE CORNWALL, OFSAME PLACE.

IMPROVEMENT IN HAMMERS.

Specification forming part of Letters Patent No. 204,665, dated June 11,1878; application tiled March 7, 1878.

To all whom it may concern:

Be it known that I, HENRY HAMMOND, of Hartford, in the county ofHartford and State of Connecticut, have invented certain new and usefulImprovements in Hammers, of which the following is a specification:

My improvement relates chiefly to that class of hammers known as clawhammers, although part of my invention is equally applicable to otherforms of hammers and similar tools.

The object of my improvement is to provide a claw that will take hold ofnails the heads of which have been broken off, and hold them moresecurely while they are being drawn than can be done with the claws nowin use.

My invention consists in serrating the holdin g-edges of the claw.

In the accompanying drawings, Figure 1 shows a section through themiddle of the head of the hammer, with part of the handle lying in theeye or socket, showing how it is wedged in its place. Fig. 2 is an endview of the hammer, showing the claw and its serrations.

A is the head of the hammer. B is the handle. C is the curved claw,which has two converging edges, into which the end of the nail to bedrawn is passed in the usual manner. These edges are formed in the usualmanner, except that they are serrated, so as to more iirmly gripe a nailand prevent it from slipping out. I prefer to make these serrationstolerably fine, something in the manner of an ordinary file. They may bemade single, or the lines may be hatched or crossed, the principalobject being to create a sufiicient roughness or bite to hold the shankof a nailindependently of its head.

D is the eye or socket, into which the handle is inserted. This is madeof about the same size or diameter at the outer and inner ends a and b,but is contracted in the middle at c, the interior not being of a truetaper throughout, as usually constructed, but largest at the ends andcontracted at the middle, as shownin the drawing. By means of this formof eye the handle is held securely in the head, while at the same timethe flare at the rear portion of the socket prevents the forciblecontraction and breaking of the fibers of the wood just where it entersit, and allows of a somewhat taper handle being driven into its bearingbefore it is wedged. After the handle is driven into the head the wedgesE are inserted in the usual manner to hold it in its place and preventthe head from being drawn off.

What I claim as my invention is- The claw C, provided with serrations,substantially as and for the purpose herein described.

HENRY HAMMOND.

Witnesses:

THEO. G. ELLIS, JOHN T. Pnrnns.

